Arithmetic Shift
The arithmetic shift micro-operation moves the signed binary number either to the left or to the right position.
Following are the two ways to perform the arithmetic shift.
- Arithmetic Left Shift
- Arithmetic Right Shift
Arithmetic Left Shift:
In this shift, each bit is moved to the left one by one. The empty least significant bit (LSB) is filled with zero and the most significant bit (MSB) is rejected. Same as the Left Logical Shift.
Arithmetic Left Shift
Arithmetic Right Shift:
In this shift, each bit is moved to the right one by one and the least significant(LSB) bit is rejected and the empty most significant bit(MSB) is filled with the value of the previous MSB.
Arithmetic Right Shift
Shift Micro-Operations in Computer Architecture
Shift micro-operations are those micro-operations that are used for the serial transfer of information. These are also used in conjunction with arithmetic micro-operation, logic micro-operation, and other data-processing operations. There are three types of shift micro-operations: 1.